Why I can't copy, cut, and paste on Google Docs?

Google requires the Google Docs Offline extension installed to enable copy, cut, and paste. However, Puffin Cloud Isolation does not support the third-party extensions. Instead, please try the keyboard shortcuts below:

Windows

Ctrl+C for Copy

Ctrl+V for Cut

Ctrl+V for Paste

Mac

⌘+C for Copy

⌘+V for Cut

⌘+V for Paste

To understand more about Puffin Cloud Isolation not supporting the third-party extensions, please refer to this article.